Replaces OEM # 4X50M08812, 61++, 01AV427, 01AV428, 01AV492, SB10K97584, SB10K97584, SB10K97585 Fits: LENOVO THINKPAD T470, THINKPAD T480, THINKPAD T570, THINKPAD T580, THINKPAD A475, THINKPAD A485, THINKPAD P51s, THINKPAD P52s, THINKPAD 25 Specs: 10.8V, 72WHR, 6600MAH, 6 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each product has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety